GN Heavy Duty Double Nut Shackle GN Heavy Duty Double Nut Shackle Type H11 Material Forged alloy steel quenched and tempered Safety MBL equals 5 x WLL Finish Galvanized with stainless steel cotter-pins Certificates on request Material certificate Manufacturer certificate Proof load certificate NDT inspection certificate Classification inspection certificate (DNV, Lloyds, ABS, BV etc) We Provide The Best Service In The Industry